.bgmiddle {
  width: 1280px;
  height: 819px;
  padding-top: 100px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
}
.middle {
  width: 1200px;
  height: 412px;
  display: flex;
  margin-top: 50px;
}
#external {
  width: 599px;
  height: 412px;
  border-right: 1px solid #000;
}
.welcome {
  width: 358px;
  height: 373px;
  margin-left: 150px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
form {
  display: none;
}
.welcome .second_form {
  position: absolute;
  margin-top: 86px;
}
form.active {
  display: block;
}
.welcome p:nth-of-type(1) {
  width: 358px;
  height: 26px;
  font-size: 20px;
  color: #03234c;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 15px;
}
.welcome p:nth-of-type(2) {
  width: 358px;
  height: 45px;
  display: flex;
  justify-content: center;
}
.welcome p:nth-of-type(2) span {
  width: 179px;
  height: 45px;
  text-align: center;
  line-height: 45px;
  font-size: 16px;
  border-bottom: 1px solid #bbb;
  color: #bbb;
  cursor: pointer;
}
.welcome p:nth-of-type(2) span.active {
  color: #000;
  border-bottom: 1px solid #000;
}
.welcome label {
  margin-bottom: 14px;
  display: flex;
  align-items: center;
}
.welcome label:nth-of-type(1) input {
  text-indent: 15px;

  width: 358px;
  height: 44px;
  font-size: 15px;
  font-family: Arial, Helvetica, sans-serif;
  outline: none;
  border: 1px solid #e0e0e0;
}
.welcome label:nth-of-type(2) input {
  text-indent: 15px;

  width: 223px;
  height: 42px;
  font-size: 15px;
  font-family: Arial, Helvetica, sans-serif;
  outline: none;
  border: 1px solid #e0e0e0;
  border-right: none;
  
}

.welcome label:nth-of-type(2) span {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 135px;
  height: 42px;
  border: 1px solid #e0e0e0;
  border-left: none;
  cursor: pointer;
}
.welcome label:nth-of-type(3) input {
  text-indent: 15px;
  width: 232px;
  height: 40px;
  font-size: 15px;
  font-family: Arial, Helvetica, sans-serif;
  outline: none;
  border: 1px solid #e0e0e0;
  border-right: none;
  
}
.welcome label:nth-of-type(3) button {
  width: 122px;
  height: 42px;
  border: none;
  font-size: 14px;
  font-family: Arial, Helvetica, sans-serif;
  background-color: #03234c;
  color: #fff;
  cursor: pointer;
}
.welcome .second_form label:nth-of-type(2) input {
  text-indent: 15px;

  width: 358px;
  height: 44px;
  font-size: 15px;
  font-family: Arial, Helvetica, sans-serif;
  outline: none;
  border: 1px solid #e0e0e0;
}
.welcome .second_form label:nth-of-type(3) span {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 125px;
  height: 42px;
  border: 1px solid #e0e0e0;
  border-left: none;
  cursor: pointer;
}
.dis_box {
  width: 358px;
  height: 20px;
  color: #d71921;
  font-size: 12px;
  line-height: 20px;
  display: none;
}
.dis_box .icon_error {
  float: left;
  display: block;
  width: 14px;
  height: 14px;
  margin-right: 5px;
  overflow: hidden;
  background-color: #d71921;
  border-radius: 50%;
  vertical-align: middle;
}
.icon_error:before {
  content: "";
  display: block;
  margin: 0 auto;
  width: 2px;
  background-color: #fff;
  height: 6px;
  margin-top: 3px;
}
.icon_error:after {
  content: "";
  display: block;
  margin: 0 auto;
  width: 2px;
  background-color: #fff;
  height: 2px;
  margin-top: 1px;
}
.login_immediately {
  width: 358px;
  height: 45px;
  border: none;
  font-size: 16px;
  font-family: Arial, Helvetica, sans-serif;
  background-color: #03234c;
  color: #fff;
  margin-top: 15px;
  cursor: pointer;
}
form .forget {
  display: block;
  width: 358px;
  margin-top: 50px;
  text-align: center;
  color: #03234c;
  font-family: Arial, Helvetica, sans-serif;
}

.join {
  width: 365px;
  height: 248px;
  margin-left: 50px;
}
.join h2 {
  width: 365px;
  font-size: 20px;
  font-family: Arial, Helvetica, sans-serif;
  text-align: center;
  margin-bottom: 25px;
  color: #03234c;
}
.join p {
  width: 365px;
  font-size: 14px;
  margin-bottom: 10px;
  font-family: Arial, Helvetica, sans-serif;
  color: #999;
}
.join ul li {
  font-size: 14px;
  margin-bottom: 10px;
  font-family: Arial, Helvetica, sans-serif;
  list-style: square;
  padding: 0;
}
.join button {
  width: 365px;
  height: 50px;
  color: #fff;
  background-color: #03234c;
  border: none;
  font-size: 16px;
  font-family: Arial, Helvetica, sans-serif;
  margin-top: 30px;
  cursor: pointer;
}